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OS&Y, Rising stem, Flexible Wedge Bolted Bonnet, Threaded or welded seat ring ASTM A216 WCB, A217 WC6, A351 CF8, A351 CF8M, A351 CF3, A351 CF3M, A351 CN7M Standards compliance Design and Manufacture: ANSIB16.34, API600, API6D, API603, BS1414 Face to face (end to end): ANSIB16.10, API6D Flanged connection: 2"~24"to ANSIB16.5, Test and inspection: API598, API6D Butt welded end: ANSIB16.5 The products can be produced wording to customer''s design and request.
